Shift Controller for Vehicle

a technology for shifting controllers and vehicles, applied in the direction of gearing control, control devices, gearing elements, etc., can solve the problem that the reference position of actuators cannot be determined with high accuracy, and achieve the effect of preventing a decrease in responsiveness

Active Publication Date: 2018-02-15
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In the shift controller for a vehicle according to this aspect, when the standby time in which setting of the reference position is not performed again but is waited for due to a state in which the supply voltage to the actuator is lower than the second voltage determination value from a time point at which the count value of the actuator is returned to the count value at the time of starting rotation of the actuator after the setting of...

Problems solved by technology

Accordingly, in the reference position setting control, there is a likelihood that the reference position of the actuator will not be determined with ...

Method used

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  • Shift Controller for Vehicle
  • Shift Controller for Vehicle
  • Shift Controller for Vehicle

Examples

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Embodiment Construction

[0033]Hereinafter, a shift controller for a vehicle according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0034]FIG. 1 is a diagram schematically illustrating a configuration of a power transmission path from an engine 12 to driving wheels 14 in a vehicle 10 to which the present disclosure is applied and is also a block diagram illustrating a principal part of a control system which is disposed in the vehicle 10 to control a shift switching unit 16 (which is illustrated in FIG. 2) and the like. In FIG. 1, the vehicle 10 includes a shift switching unit 16, an electric actuator 17 that drives the shift switching unit 16, an automatic transmission 18, a shift operating unit 30, and an electronic control unit 32, and employs a shift-by-wire (SBW) system that electrically switches a shift position for switching a driving mode associated with traveling of the vehicle 10. The automatic transmission 18 is suitably used, ...

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Abstract

A shift controller for a vehicle includes a shift switching unit, a rotation restricting element, and an electronic control unit. The electronic control unit is configured to: acquire a count value corresponding to a degree of rotation of an actuator; set a rotational position of the actuator when the count value does not change by restricting rotation of the actuator using the rotation restricting element as a reference position of the actuator corresponding to the predetermined shift position; and interrupt setting the reference position of the actuator and restart setting the reference position of the actuator when the rotation of the actuator is restricted and a supply voltage to the actuator is equal to or lower than a predetermined first voltage determination value or a variation in the count value while the rotation of the actuator is restricted is equal to or greater than a predetermined value.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2016-157035 filed on Aug. 9, 2016 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND1. Technical Field[0002]The present disclosure relates to a shift controller for a vehicle that sets a reference position of an actuator and more particularly to a shift controller that suppresses a decrease in accuracy for setting a reference position of an actuator due to a decrease in voltage supplied to the actuator at the time of performing reference position setting control.2. Description of Related Art[0003]In a vehicle including a shift switching unit configured to switch a shift position of the vehicle to one of a plurality of shift positions by driving an actuator which is supplied with power from a power supply and a rotation restricting element configured to restrict rotation of the actuator in a predetermined direction at a predetermined shift p...

Claims

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Application Information

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IPC IPC(8): F16H63/34F16H63/30F16H61/02
CPCF16H63/3466F16H63/3475F16H61/0213F16H63/3043B60K17/346F16H2059/443F16H2059/0282B60W10/184B60W10/101F16H2061/1292F16H59/12F16H61/12F16H61/28F16H63/3425F16H63/42F16H2061/283F16H2061/326
Inventor KAMADA, ATSUSHIKUBONOYA, HIDEKISAKAGUCHI, KOJIKAWAGUCHI, YUSAKU
Owner TOYOTA JIDOSHA KK
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